Pattern-reversing mechanism



5 Sheets-Sheet lllllu Filed Aug. 29, 1927 R LEVEILLE PATTERN REYE'RSING MECHANISM July 24, 1928. 1,678,121

R.. LEVEILLEE v PATTERN REVERS ING MECHANISH Filed Aug. 29, 1927 s sheets-sheet 2 lle-.naam Y muummmuqpllmnmumn July 24, 192s.

R. LAEVEILLEE PATTERN REVERSING MEGHANISM Filed Aug. 29, 1927 5 Sheets-Sheet 3 Patented July 24, 1928.

knutrie!) STATES PAI'vl'NTl OFFICE.

, RAPHAEL LEVEILLE, OF ESMONIL RHODE ISLND.

' PATTERN-REIVEBSING MECHANISM.

Application filed August 29, 19.2."'if` Serial No. 216,009.'

transversely disposed non ornamentalareas. The essentialobjectsv of my invention are to automatically, reverse the run of the patf tern'cardsi at any predetermined point; to automatically resume the original direction of run after such reversal; to effect a multiple of such reversals in succession gfto prevent Waste of the woven material; torsave Weaving time and reducev the labor of the attendant; and to insure vthese results Without structural change of the jacquard portion or the Weaving portion ofthe loom. y y

To the above endsessentially my invention consists in such parts and in such combinations of parts as fallvvithinthe scope of the appended claims. l j

In the accompan'ying drawings which forni a part of this specification Figure 1 is a fragmentary perspective view of a double cylinder Jacquard loom with my auxiliary or suplemental mecha* nism applied theretov or embodied therein, parts of the jacquard motion and 4loom mechanism unnecessary for an understanding of the invention being omitted, i j Figures 2 and 3,. a fragmentary frontrele` vation and a Vplan view respectively of a portion of my auxiliarymechanism,

Figure 4,A a front elevation of thesame showing the parts in another operative position,

Figure 5, a rear elevation ofthe counting Wheel and signal arm, and'V` Figure 6, afragmentary perspective vievvv of the tension lever and adjacentparts.

Likey referenceI characters indicate like parts throughout the views. n t,

In the construction illustrated 15-r`ep`resente the frame, 16 the griff bars or knives, 17 the cross Wires, 18 the grate,-19 and 2O the'line separating rods and grate, 121 and 9.2 the main 'and auxiliary card cylinders, 23 land 24 the respective card chains, 1and 27 the pattern ,cardsof ajacquard mechanism. The usual upper vand lowempawls or catches 30 and cooperate with the lantern portion `of the cylinder 21 While the corresponding catches 33 and 34 cooperate With lthe cylinder 22. 37 and 38 represent the lifting pins or upright Wires connecting catches 30, 31 and 33, 34 respectively. `In conjunction with the above suggested jacquard* operating .parts the construction of my mechanism will be understoodby one familiar With the art.

In this instance each lifting pin has a. terminal loop or hook 40 engaging a lower catch, and an intermedia-te shoulder 42 supporting a `lateral lug 44 upon the upper catch, the lug having a perforation through which loosely projects the upper portion of the "pin terminating in an eye 46. Engaging the eyes ofthe lifting pins 37 and 38 are the lower ends of helical springs 48 and 49 respectively Whose respective upper ends are attached to the outer ends of levers 51 and 52 pivoted intermediate their lengths upon studs or pins 55 fixed in the jacquard frame. To the inner endsof thelevers 5l and 52 respectively are attached cords 56 and 57 to which reference `Will hereinafterr be made.` 'For the purposes of my invention two cards ofthe chain 23 indicated by the numerals 60 and 61, and which are separated fromeach other by `a plurality of intervening cards, have in their corresponding end margins holes 62 and 63 respectively, independent of the pattern holes. Arranged to cooperate with these special or independent holes aretvvojacquard needles 66 and 67 engaging correspondingihooks or uprights 68 and 69 adapted to be engaged by two of the knives of the knife series', and operated in conjunction with the ycylinder 21 by the same mechanism and in the `same manner as are the pattern needles'and uprights. The chain Q3 lincludes the usual cutting line card 70 for its usual function. Instead of being connected `with the harnesses the upright 68 hasv attached to its lower end cords 72 and 73, and the uprights 69, a cord 74, to which three cords' reference Will hereinafter be made.

77 represents the archofthe Weaving portion 1 of the Jacquard loom,and 78'the vertical extensions carriedby the Weaving portion for supporting the jacquardportion of the loom frame. It Willbe understood that the supports 78 may be omitted when the 'acquard mechanism is, as is usual,- mounted indepen'dently 'of the loom proper. Fixed tu the arch 77 or tti an attaehiiigplate S] lll( in turn fixed by bolts 82 or otherwiseito the arch, is a stud 83 upon which is loosely pivotedv an eccentric cam shaped roller 85 provided with a peripheral groove 86 to receive astrap 87 to one end of which is attached I with its .stud to resist .accidental rotary movement. A radially projecting linger 97 is fixed to the rear face of the wheel. Adjacent the `wheel .95 isa verticalbracket 98 iiXed by bolts 99 to the plate 81, and pro- I vided upon its upper extremity .withya pointer 100. Upona pin or stud 101 inthe n bracket. is rotatably mounted. an indicator ratchet wheel 103 provided with ythe usual teeth 104. A. pin orv projection 105 extends from its vrearface.y The front face lof this wheel has a marginalannular scale ofgraduations 10G. y A pivot pin 107 in the arch 77 and plate S1., isk subjacent to the wheel 103, andhasppivoted thereon asignal arm 109. A ca1niingcr110 istiXed by rivets 111 tothe signalarm transversely thereof and projects therefrom into the path of theI pin 105. A pawl 113 is `loosely pivoted tothe plate 81 by means of a stud 114 located intermediate the membcrs... 95 andy 103, and is adapted to engage the .teeth upon the eccentric roll S5. A detent arm.116 is also loosely 'pivoted upon the stud 114 and is adapted to engage the teeth 96of the ratchet-wheel95 to lprevent accidental movement thereof. fThe pawl 113 is providedwith a longitudinal slot 118 in vwhich are adj ustably fixed pivot pins 119-and 120. :The former pin has pivota'lly mounted vthereon a ratchet hook 121y engag-l ingthete'eth 96 of the wheel 95. -On the pin 120 is pivotedja ratchet arm 123 engaging the; teeth 104 of the wheel 103. "The free end of the pawl is attached to the,` cord 74. yThe plate 81 or'the loom ,arch 81 is provided with a depending bracket 122 in which is a pin 123 upon which is pivot-edr intermediate its length a tensioning'lever 125 which extends'transveiselyaof the plate 81;` and loom arch.O The forward end ofthe lever has pivoted thereto the lower end'of ar link or rod'127 which passes loosely through a laterally extendingeye or ringr129 upon reversal ofv patterns is eifected. `When the pattern card' chain 23 has completed the 'travel incident to the weaving of one individual design or unity and the cutting line card has passed, the pattern card 61 becomes so positioned that a subsequent inward movement of the cylinder' 21 will bring the "opening `G3v into 'registration with the needle 67and the upright 69, is permitted 'to move into such position that the next up- -to 'attractthe attention of ithefoperator to notify him. that the .determined*number of designs yis nearly completed .and that fthe automatic `reversal mechanism may kbeset. This setting is effectedby ygrasping the `finger 97 and turning thegwheel 95 clockwise until the -nger assumes the position shown in Figure 4. i TheA withdrawal of i the hnger 9,7

from the leverf125 permits 'the klever 12,5,t'o

pivot to relax tension upon thclcord 73. which nori'nallyholdsthe upright 68 out of the path of its griff knife, and to drop the lin-k 127 permitting the pawl113 to engage the teeth 89 of theeccentric reversing roll 85,.,y as shown 'in Figure 4. y

.The wheel is ay timing and llocking device -by which the. number .of ,successive reversalsnecessary to weave a. certainlength .of header Ais= regulated. ,After setting, this wheel is returned.stepby step.rto its original position by the reciprocation of the pawl 113 and ratchet hook 121.

lVhen tension on cord `73 was relaxed the npright163,.upon registration olf-lits needle 06 with the hole 62 assumed a vertical posit1on,. and .was thereupon adaptedr `for en `@agement with its 'griffknifa and upon the first rise ofthe'knife thereafter translated said movement into a pull of the co1d72, therebyy rotating clockwise the reversing'roll 85 about'a quarter turn to the position shown inbreken lines in Figure 4. .The clockwise motion of thereversinglroll 35 through the medium jofits strap 87 pulls downwardly upon cords `56 and 57, thereby reversing` both ypairs of cylinderhooks 30,. 31 and 33. 34,,vvhereuponthe next outward movement of the cylinders 121. and 22 results in the' reversing .offthje cylinders,r and uponthe next inward movement of` the cylinders the reversing hooks 31 and 34 through the resilientiti lever 125 in itSoriginal position.

f cy of the'springs48 and 49 are permitted to ride ,over and properly engage the corners of the cylinders. The reversal. of the cyl- .inders 4reverses `the travell of* thepattern chains, Vand this reverse travel continues until the pattern card 61 oil the chain 23 is in such position that Athe next 4inward movement of the cylinder 2l will effect registra tion of the opening 63 with the needle 67,

whereupon the upright 69 assumes a position adapted to be engaged and raisedby its griii knife upon the next upward movement thereot. The raising of the upright69`, through the medium of the cord 74, littstheipawl 113 trom contact with the teeth 8930i the the cylinder hooks 30,` 31 and 83, 34 to return to their original positions andthe loom now resumes direct weaving.

The cycleot' operations intervening between the setting of the wheel 95 and the returning to original position oi the reversal roll is alternately and automatically re peated until the wheel 95 resumes its original position with the finger 97 again locking the In such original position the lever 125 functions to maintain all the reversal mechanism inactive until a second setting ot the wheel /95 is efiiected.v During this inactive period the pawl 113 kagainsreciprocates between the points indicated by the full lines andy broken lines in Figure 2, and resumes its normal `function operating the indicator wheel 103. During the above describedcycles of operation the alternate periods thereof have resulted in weaving an intervening area oi? cloth commonly called the header comprising a series of repetitions of a portion only of the entire design. i ,i

1. The combination of a card cylinder, means for operating the cylinder, means for reversing the operation, a counter connected with the operating and reversing means, an

` indicator or signal, and means controlled by gaged thereby and bring the arm into dis` play position.

, The combination of a card cylinder,

means "for operating the `cylinder including a `pair of opposed pavvls,wai chain of cards driven" bythe cylinder, a rpair ofnpriglits cngageable with the operating means and normally inactive, a pair direction-needles engageable with'selected cards to set the. vuprights in active position,1 a` reversing roll connected with 'one oi' the uprights and with thepawls, and `a timing and locking device connected with the two uprights and `engageable with the reversing roll.

4. The combination ot' a card cylinder normally rotating in one direction, means for operating the cylinder, a reversing roll, means connected with the operating mechanism for rocking the roll and reversing the direction of rotation ot' the cylinder, and a timing andsloching device connected with the operating means and engageable with the reversing roll to maintain the rotation through a predetermined interval.

. The combination of a card cylinder,

G. The combination with a card cylinder,

and-means for operating the same, oi a tension lever connected with a part of the operating means, a reversing rollv connected withf the same part ot the operating means whereby upon release of the tension lever the roll will be active, a timing and locking swhe'el, an element for setting said wheel, said element normally holding the tension lever yagainst/release, and means for actuating the timing and lockingwheel through a predetermined interval to return the parts to normal, said means being normally held inactive by the tension lever.

7. The combinationot a card cylinder, and means for operating the same, includ ing aipair of opposed pawls, of a pair of card and needle controlled uprights actuated by the operating means, a reversing cam, a ieXible connection between one of the uprights and the pawls, said connection being trained around-the cam, a ratchet on the cam, a timing and. locking kwheel adjacent `the campa, pawl adapted `to engage the kkratchet on the cam, a connection between the pawl and the second upright, means on the pawl yior actuating the timing and lock` ing wheel, a tension lever below thepawl, a connection between one endet the leverand the iirstupright, a setting arm on the wheel normally abutting the tension lever to maintain the lastanentioned connection `under tension, and a link carried by the tension lever and normally holding the pawlraised reversing theoperation, a counter connected in inoperative position.. f Y si with the operating and reversing means,v an

8. The combinationy of a card cylinder, indicator,v orsignal, and means" for bringing means for operating the cylinder, ineansfor saidiindicatoi: or'signal into display position f. 5 reversing the operation, an indicator or sigpreliminarily to the initiation of the rever-S915 nah-and means for bringing said indicator i'ng means. t 1 f i f A yorsignal into display position ypreliininarily In testimony whereof ll have ailixeddmy to the initiation of the reversing means'. signature.' v f f yQ ?The coinbinationof a card cylinder, .w l 10 ineans roi' operating the cylinder7 means for y ,RAPHAELLEVEILLEE 

